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What studies have actually found about short-video feeds. Every record names its source, its study design and its limitations, and keeps the source’s finding apart from our reading of it.

Cross-sectional studies on sleep

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  1. Association of Short-Form Video Use With Attention Control and Sleep Quality Among Medical Students: A Cross-Sectional Study

    Mohammed, B. A.; Allampally, S.; Sadanandam, P. et al.
    Cureus

    This cross-sectional study looked at short-form video use among 342 medical students. Students who opened short-form video apps more often had lower attention control, while students who spent longer watching had poorer sleep quality. Because the study was cross-sectional, it shows associations, not causation.

    Design
    Cross-sectional
    Year
    2026
    Topics
    Attention, Digital behaviour, Sleep
    Limitations recorded

  2. Effect of short video addiction on the sleep quality of college students: chain intermediary effects of physical activity and procrastination behavior

    Zhao, Z.; Kou, Y.
    Frontiers in Psychology

    This study of 337 college students found that higher short video addiction scores were linked with poorer sleep quality. It also found that lower physical activity and higher procrastination were linked with both higher short video addiction scores and poorer sleep quality. The authors report mediation results suggesting physical activity and procrastination may help explain this association.

    Design
    Cross-sectional
    Year
    2024
    Topics
    Digital behaviour, Sleep, Youth wellbeing
    Limitations recorded

A study is published here only after its source is identified and verified, its design classified, its finding checked against the original, and its limitations recorded. How we judge evidence